About the Authors

Arno Cimadom

Affiliation Department of Behavioural Biology, University of Vienna, Vienna, Austria

Angel Ulloa

Affiliation Charles Darwin Foundation, Puerto Ayora, Santa Cruz Island, Galápagos, Ecuador

Patrick Meidl

Affiliation Institute for Science and Technology, Klosterneuburg, Austria

Markus Zöttl

Affiliation Department of Zoology, University of Cambridge, Cambridge, United Kingdom

Elisabet Zöttl

Affiliation Department of Behavioural Biology, University of Vienna, Vienna, Austria

Birgit Fessl

Affiliation Charles Darwin Foundation, Puerto Ayora, Santa Cruz Island, Galápagos, Ecuador

Erwin Nemeth

Affiliation BirdLife Austria, Vienna, Austria

Michael Dvorak

Affiliation BirdLife Austria, Vienna, Austria

Francesca Cunninghame

Affiliation Charles Darwin Foundation, Puerto Ayora, Santa Cruz Island, Galápagos, Ecuador

Sabine Tebbich

sabine.tebbich@univie.ac.at

Affiliation Department of Behavioural Biology, University of Vienna, Vienna, Austria

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AC AU MD BF ST EZ MZ PM. Performed the experiments: AC AU EZ MZ MD BF FC ST PM. Analyzed the data: AC EN ST MD. Contributed reagents/materials/analysis tools: PM FC. Wrote the paper: AC ST EN FC BF.